Vacuum cleaner



FIG. 1 is a prospective view from the front and one side, of the vacuum cleaner;

FIG. 2 is a front plan view of the vacuum cleaner of FIG. 1;

FIG. 3 is a top plan view of the vacuum cleaner of FIG. 1;

FIG. 4 is a side plan view of one side of the vacuum cleaner of FIG. 1;

FIG. 5 is a side plan view of the other side of the vacuum cleaner of FIG. 1; and,

FIG. 6 is a rear plan view of the vacuum cleaner of FIG. 1. 

The ornamental design for a vacuum cleaner, as shown. 